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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A371428 Expansion of (1/x) * Series_Reversion( x / ((1+x)^3 - x^2) ).

Table of values

n a(n)
0 1
1 3
2 11
3 46
4 209
5 1003
6 5002
7 25665
8 134605
9 718371
10 3888633
11 21298962
12 117823660
13 657344600
14 3694378463
15 20896495211
16 118865999117
17 679545095167
18 3902327585407
19 22499738052954
20 130200110475407
21 755927955655813
22 4402088019958400
23 25706104810367515

List of values

[1, 3, 11, 46, 209, 1003, 5002, 25665, 134605, 718371, 3888633, 21298962, 117823660, 657344600, 3694378463, 20896495211, 118865999117, 679545095167, 3902327585407, 22499738052954, 130200110475407, 755927955655813, 4402088019958400, 25706104810367515]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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